Shanghai imported cases of mutated virus infection China CDC experts: don't panic

Recently, the Shanghai CDC in the United Kingdom imported new confirmed cases of coronary pneumonia genetic sequencing monitoring, found that one case of the new coronavirus gene sequence B.1.1.7 subsype, similar to the recently reported variant of the virus gene in the United Kingdom.
, director of the Cdc's Viral Disease Institute, was interviewed by a reporter from the main station.
1. Has the variation found in Shanghai increased its propagation in the population? Genetic tests of the mutated strains found in Shanghai showed that the mutant strains were more infectious to cells, but their transmission was closely related to human social activities, winter climate and population self-protection measures.
2. Has the virus-like strength and severity of this variant increased? At present, there is no difference in pathogenicity, severity or death rate between the new coronavirus variant and the previous variant strain, and there is no obvious change in pathogenicity, so there is no need to panic.
3. Does China's new crown vaccine have a protective effect on the mutant strain? At present, no new coronavirus variant has been found to have an effect on the immune ability of the inactivated new coronary vaccine listed in China.
4. Can the nucleic acid testing reagent of China's new crown vaccine detect a variant? At present, China's mainstream nucleic acid diagnostic reagents are aimed at the new coronavirus double target gene, N gene and ORF1ab gene, protein gene variation does not affect the sensitivity and specificity of nucleic acid reagents, Shanghai variant is China's local nucleic acid reagent detection.
5. Are china's existing measures to prevent and control the spread of the new coronavirus effective? China in April blocked the spread of the local new coronavirus, and then through overseas imports of cases or contaminated cold chain items caused by more than 10 new coronavirus pneumonia cluster outbreaks, have taken effective measures to stop transmission.
regular screening of high-risk groups, early diagnosis, early treatment, early isolation of infected persons and close contacts, wearing masks, washing hands regularly, to maintain social distance;
6. What further measures should be taken in response to the emergence of new coronavirus variants.
people need not panic, we must strictly implement China's existing prevention and control measures, the need to strengthen personal awareness of protection, especially for imported cases of hospitals or designated isolation hotels of health care and staff protection.
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